Harpoon gun



P. J. PEARSON v HARPOON GUN Nov. 10, 1942.

3 Sheets-Sheet 1 Filed May 22, 1941 8 A h Inventor Jfls'ar-s'aaz M Aiiomey Nov. 10, 1942.

P. J. PEARSON 2,301,789

HARPOON GUN Filed May 22, 1&41 3 Sheets-Sheet 2 I Inventor jaaldmrsaaz MA tiorney Nov. 10, 1942. v P. .1. PEARSON 2,301,789

HARPOCN GUN Filed May 22, 1941 \M N Mm. NYM J N\ Q l H a \\|IBI\ n mm cQ NM \v MN Aw \N N 0 e a o O 9 0 M Q faaldmns'on A iiorney Patented Nov.10, 1942 UNITED STATES PATENT OFFICE HARPOON GUN Paul J. Pearson,Pontiac, Mich.

Application May 22, 1941, Serial No. 394,726 In Canada December 19, 19405 Claims.

This invention appertains to new and useful improvements in harpoons andguns therefor.

The principal object of the present invention is to provide a harpoongun for shooting harpoons accurately and with considerable force throughagency other than explosive means.

Another important object of the invention is to provide a harpoon gunwhich can be readily taken apart for the purpose of repair orreplacement of parts.

Still another important object of the invention is to provide a harpoongun which is provided with both a hand grip and a shoulder stock andwherein the shoulder stock can be removed whenever personal discretiondemands.

Various other important objects and advantages of the invention willbecome apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a side elevational View of the gun with a harpooninserted therein.

Figure 2 is a similar view with the stock removed and showing theharpoon in extended position.

Figure 3 is a side elevational view of the stock removed from the gun.

Figure 4 is a fragmentary longitudinal sectional view through the gun.

Figure 5 is a cross section on the line 55 Figure 4.

Figure 6 is a transverse sectional view through the safety, and taken ona line 6-6 of Figure 4.

Figure 7 is a transverse sectional view taken on a line 'l-! of Figure4.

Figure 8 is a sectional view through the pistol grip taken on a line 8-8of Figure 4.

Figure 9 is a fragmentary longitudinal sectional view through the gun.

Figure 10 is an end elevational view of the barrel.

Figure 11 is a fragmentary top plan view of the stock.

Figure 12 is a side elevational view of one form of harpoon, and

5. At the butt end of the barrel is the handle structure which is madeup of the intermediate member 6 and the two side members I1. Bands 8-8are disposed over the barrel and have tail portions 9-9 which extenddownwardly between the side members I of the handle and the intermediatemember 6 and on the inner side portions of the forwardly projectingplates l0l0 carried by the stock ll. These plates being secured byrivets or the like l2 to the said stock. Removable bolt or screw means[3 is disposed through the side members 1 of the handle and theintermediate portion 6 and also through the tail portions 9 and platesill to hold these parts firmly together. Obviously, by removing the boltand screw means l3 the stock II can be removed whenever desired whenjust the handle grip is desired for use, or where repair or replacementof parts is required.

In the butt end of the barrel 5 (see Figure 4) is the plug 14 secured inplace by the bolt l 5 which also extends through the bands 8 andattached to this plug I4 is the elongated compressible spring [6 whichat its forward end carries the follower block I1.

The band I 8 embraces the intermediate portion of the barrel 5 and hasdepending flange portions l9l 9 against which the forward hand grip sidepieces -40 are disposed. Between the lower portions of the flanges l9-l9is disposed the spacer strip 2| and through this spacer strip 2|, andflanges I9, are disposed the securing rivets 22.

A swingable trigger plate 23 fulcrumed as at 24 between the flangesl9-l9 has the shoulder portion 25 operative through the opening 26 inthe bottom portion of the barrel 5. A short arm 21 extends rearwardlyfrom the lower portion of the trigger plate 23 and from this extends thepivotal link 28 which is connected by a pivot pin 28' to the pivotallink 29, the latter being pivotally secured as at 39 to the block 3 I.Also pivoted on the pin 28' is a yoke 29' threaded on one end of a rod32 which extends rearwardly through a bracket 34 and. then downwardly asat 35 in spaced relation in advance of the hand grip I. A coil spring 33is mounted on the rod 32 with one end abutting the bracket 34 andtensionally abutting at its other end against adjusting nuts 32,threaded on the rod for the purpose of normally maintaining the parts inthe positions shown in Figure 4 with the shoulder portion of the plate23 urged upwardly through the opening 26. Obviously, when the shaft 38of a harpoon generally referred to by numeral 39 is disposed in thebarrel and forced inwardly so as to compress the spring IB, the head 40of the ha poon shaft will engage behind the shoulder 25 of the triggerplate 23 and remain in this position until the portion 35 of the triggeroperating rod 32 is pulled backwardly, to release the shoulder 25 fromthe head 40, whereupon the force of the spring will expel the harpoonwith considerable force.

Along the top of the barrel and the bands l8 and 8 is disposed the beadstrip 4| which can have a bead 42 at its forward end.

The harpoon is preferably of the type consisting of the forward body 43having a threaded socket therein for receiving the forward end of theshaft 38 and this body portion 43 has a plurality of tines a4,preferably barbed projecting therefrom. The forward portion of theshaft-33 has the shoulder 45 between which and the slidable collar ft isinterposed the compression spring 57. Extending from the slidable collar48 is a swingable bail 46' to which the line '48 is attached and whichis coiled around the tapered frame 49. This frame is of U-shaped. wirewith the ends of its leg portions secured within the confines of thedepending leg portions 50 of the bracketband which embraces the barrelThe frame tfltapers forwardly sothat the line can easily pay therefromas the harpoon is projected.

Another form of harpoon is shown in Figures 12 and 13wherein theshaft'section 5i hasthe socket 52 therein for an elongated shaft. Thissection H has the tapered'head 5-3 and the swingable barbs 54 carriedthereby.

As shown in Figure 4; a pintle ESeXtends rearwardly from the downwardlycurved portiontii of the rod-32 and is slidably disposed in the smallbore 56 in the lower portion of the section 'fiof the hand grip.

The barrel 5 is provided with a longitudinally extending slot along itstop and under the bead strip 4! and the follower-block i1 is providedwith a lug 58 which slides in'the slot to prevent rotation thereof whenthe harpoon is released. Likewise the head 49 is provided withacrossslot 5.; for receivinga tongue 62] on the follower block I?to-prevent rotation of the harpoon.

A safety 32 is provided for the trigger plate 23 and comprises aU-shaped slide positioned beneath the side pieces with its endsprojecting upwardly between the pieces 2820, as shown in Figure 6, andhaving a pin 63 slidable in a slot 64 formed in the flanges If). The pinis movable against a shoulder 6| on the'lower edge'ofthe plate 23-toprevent downward swinging movement of" said plate.

A small coil springiE is'freely'mounted on'the shaft 38 betweentheheadall and the slidable collar 56 toact as a shock absorber for thecollar'whenthe harpoon is released.

Whilethe foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter,

Having thus described the invention, what I claim is:

l. A harpoon gun comprising a barrel having a longitudinal slot, saidbarrel being adapted to receive a harpoon shaft, a spring projectedfollower in the barrel engaging the shaft to discharge the latter, a lugon the follower slidable in the slot to prevent rotation of the followerand means connecting the shaft with the follower to secure the shaftagainst rotation.

2. A harpoon gun comprising a barrel having a stock, a swingable triggerplate having a shoulder, said barrel having an opening through which theshoulder portion of the plate is laterally operative, a harpoonprojecting spring in the barrel, a pressure member adjacent the stock,and connecting means between the pressure member and the trigger platefor releasing the trigger plate frcm' a position in the barrel when thepressure member is pressured toward the stock, and a safety deviceincluding a slidably mounted member extending transversely beneath thetrigger plate to secure the plate inactive.

3. A harpoon gun comprising a barrel'having a longitudinal slot, aspring projected member in the barrel and a lug on the memberslidableinthe slot to prevent rotation of the member during longitudinal movementthereof in the barrel and 'a sighting strip onthe barrel. and coveringsaid slot.

4. A harpoon gun comprising a barrel having a stock, said barrel alsobeing-provided with a lateral opening, a swingable'trigger-platehaving'upper and lower shoulders, the upper shoulder being projected into theopening,- and engageable with a projectile in the barrel to retain" theprojectile in its retractedposition; trigger plate releasing meanscarried by the stock'anda safety 'member extending transversely beneaththe lower shoulder of the trigger plate and movable into and out ofengagement therewith.

5. A harpoon gun comprisingabarrlhaving a stock, said barrel beingadapted to receive a harpoon shaft, a spring projected follower in thebarrel behind the shaft, said'barrel'havingia' longitudinal slot andsaid follower having a' lug slidable in the slot to prevent rotation ofthe follower and interengaging means between the shaft and the followerto prevent rotation'of the harpoon.

PAUL J. PEARSON.

